Rail anchor



Aug. 4, 1925.

c. G. ERICSON RAIL ANCHOR Filed Oct. 6, I924 INVENTDR Patented Aug. 4, 1925.

PATENT OFFICE.

7 CHARLES Gr. ERIOSON, OF TORONTO, ONTARIO, CANADA.

RAIL ANCHOR.

Application filed October 6, 1924. Serial No. 741,937.

To all whom it may concern:

Be it known that I, CHARLES G. EnIcsoN, resident of the city of Toronto, in the county of York, Province of Ontario, Canada, a 5 subject of the King of Great Britain, have invented certain new and useful Improve- .ments in Rail Anchors, of which the following is a specification. V

This invention, relates to rail anchors of the type employing a yoke embracing the rail base flange and a wedge shaped shoe driven between-one edge of the flange and provided with an abutment adapted to engage the side of a tie. e v t w In my co-pending application No.-'Z4t1,986, dated Oct. 6th, 1924, I have disclosed arail anchor provided with a, form of shoe which by cutting, bending andQforging can be cheaply made from flat metal plates or-bars. In the present invention mylobjectis to devise'an anchor'in which the weight of 'metal in the shoe isconsiderably' reduced without materialreduction in the 'strengthor security of grip on the rail,

I mar my ob 'ec'tby means of the constructionshereinafter described and illustrated in the, accompanying drawings in whichi Figl l a plan view of'a biankfroni which the wedge shoes are formed;

Fig, .2 a plan, view of a co nplete rail anchor constructed-in accordance with my invention in position on a rail; I a

Fig. 83 an end elevation of the same;

. Fig. 4 a side elevation of the same;

Fig. 5"an end elevation showing a slight 'modification; p v f c ,Fig. 6 a planview of thesame; and .Fig. 7 .a sideelevat-ion of part of the end of the larger hook .of the yoke member of the anchor, showing the angle ofits under surface relative to the upper surface of the l In thedrawings' like numerals of reference indicate corresponding parts inthe clif- 'ferentJfigures. I a p In Fig.1 isshown a blank cut from a metal plate of suitable thickness. This blank is bent: up shown in the drawings to form} a member 2 fadapted to fit against for over the edge of the rail base, and the iintegralffabutment member 3 extending downwardly andadapted to engage the side eras tie;

ap -"ta es t t with t 7 surface ab.

yoke hereinafter described, a portion of the under side of the shoe isrequired to lie at an angle with the underside of the rail base,

and for a purpose which will hereinafter appear the entering end of the wedge shoe is also bevelled back.

In the form of wedge shoe shown in Figs. 2, 3 and 1-, the under side of the shoe is preferably formed of steel bent at one end to form the, hook 5 adapted to engage one edge of the rail base, while the other end is provided with the hook 6 adapted to embrace the wedge member 2 and to engage the upper side of the rail base between the edge and the web.

The under side of the-end of the hook 6 is bevelledto provide an engaging surface,

and the angle of the bevel is slightly less than'the angle of the upper side ofthe rail base to the under side whereby va full contact againstv the-rail base is ensured by the surface 7 after the yoke has been driven to operating position on the shoe and rail.

Before the yoke has been driven to position the parts appear as shown in-Fig. 7.

Thedevice is positioned on the rail base in the ordinary manner and the yoke driven over the shoe. The bevelled surface cd on the wedge shoe facilitatesthe entry of the wedge shoe into the hook 6 and serves also to tighten the yoke transversely of therail. It, however, owing to it being shorter than thebevelled surface (6-1), ceases to operate before the bevelled surface 01-?) has ceased to function. Hence it does not interfere in any way withthe drawing down of the inner the upper surface of the rail base.

The-surface 0d has been described as having agreater angle ofbevel than the i This facilitates the -'intro ductionof the end of the wedge shoe into the hook and at the same time ensures that the bevelled surface will cease to functi on e y ef e the bevelled surface ab.

The parts of the wedge shoe adjacent'the abutment end are of parallel section, so that forged or ground to form the bevel surface end of the hook 6 into tight engagement with after the wedge shoe and yoke have been.

relative to the wedge shoe, it is readily driven to a diagonal position relative to the rail base as is common practice in the art.

The arching of the hook 6 around the wedge shoe gives the hook an arc of curvature of over 180 and brings the stresses tending to spread the hook to a position some distance inwardly of the bottom of the throat of the hook, so that the wedging action tending to spread the hook is applied where it is least efiective in causing stresses tending to break the yoke adjacent the plane of the edge of the rail base.

A modified form of the invention is shown in Figs. 5 and 6 inwhich the edgeof the metal blank from which the shoe is formed is bent over to simply engage against the side of the edge of the rail base and not to hook over it as in the form shown in Figs. 2, 3 and 4. The back and under side of the wedge shoe are thereafter suitably bevelled to form as inthe former construction.

What I claim is I v 1. A rail anchor comprising a wedge shoe adapted to engage the edge and underside of a rail base; a yoke memberadapted to span the rail base and havinga hook at one end adapted to engage one edge of the rail base and a hook at the other end adapted to embrace the shoe and to engage the upper side of the rail basebetween the edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke entering end to exert a downward pressure on the yoke to draw the end of its shoe embracing hook into contact with the u per surface of the rail base. I

2. A rail anchor comprising a wedge shoe adapted to engage the edge and underside of a rail base; a yoke member adapted to span the rail base and having a hookat one end adapted to engage one edge of the rail base and a hook at the other end adapted to embrace the shoe and to engage the upper side of the rail base betweenthe edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke entering end to exert a downward pressure on the oke to draw the end of itsshoe embracing jook into contact with theuppei; surface of the rail base, the outer side of said shoe adjacent the yoke entering end also being bvl1ed,;the bevel being Shorter than. that of the under side so that it ceases to func tion before the first mentioned bevelled surface.

3. A rail anchor comprising a wedge shoe adapted to engage the edge and underside of a'rail base; a yoke member adapted to span the rail base and having a hook at one end adapted to engage one edge of therail base anda hook at the other end adapted to embrace the shoe and to engage the upper side of the rail base between the edge and the web, the said wedge shoe having; its anderside bevelled adjacent the yoke entering end to exert a downward pressure on the yoke to draw the end of its shoe embraoin hook into contact with the upper surface 0 the rail base, the outer" side of said slide adjacent the yoke enterin end also being bevelled, the bevel being s orter than that of the underside and the angle of bevel A slightly greater so that it ceases to funotion before the first mentioned bevelled'sfurfaoe.

4. A rail anchor comprisinga wedge shoe adapted to engage the edge and underside of a rail base; a yoke member adapted tosfjan the rail base and having a hook at one end adapted to engage one edge of the rail base and a hook at the otherend adapted to cinbrace the shoe and to engage the upper side of the rail base between the edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke ente i xend to exert a downward pressureon the yoke to draw the end of its shoe embr cing into contact with the upper surface of the rail base, the outer side of said shoe adjacent the yoke entering end also being bevelled, the angle of bevel being slightly greater that of the underside so that it to function before the first mentioned bevelled surface; 7 j a 5. A rail anchor comprising a wedge shoe adapted to engage the edge and run erside of a rail base; ,a yoke lnernber adapted to span the rail base and having a hook at one end adapted to engage one edge of the rail base and a hook at the other and ads ted to embrace the shoe and to engage e upper side of the rail base between themed and the web, the said wedge shoe having its ,6. A rail anchor comprising adapted to engage the edge and underside of a rail base; a yoke member adapted to span the rail base and having a at nd ada ted to engage one edge of thstrail base and a hook at the other endtgiptal to embrace the shoe and to the apper side of the rail base between the edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke entering end to exert a downward pressure on the yoke to draw the end of its shoe embracing hook into contact with the upper surface of the rail base, the outer side of said shoe adjacent the yoke entering end also being bevelled, the bevel being shorter than that of the underside and ceasing to function earlier, the yoke engaging surfaces of the shoe adjacent the abutment end of the anchor being substantially parallel.

7. A rail anchor comprising a wedge shoe adapted to engage the edge and underside of a rail base; a yoke member adapted to span the rail base and having a hook at one end adapted to engage one edge of the rail base and a hook at the other end adapted to embrace the shoe and to engage the upper side of the rail base between the edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke entering end to exert a downward pressure on the yoke to draw the end of its shoe embracing hook into contact with the upper surface of the rail base, the outer side of said shoe adjacent the yoke entering end also being bevelled, the bevel being shorter than that of the underside and ceasing to function earlier and the angle of bevel slightly greater, the yoke engaging surfaces of the shoe adjacent the abutment end of the anchor being substantially parallel.

8. A wedge shoe for a rail anchor formed of malleable plate metal having one side folded over to form a lip adapted, when the shoe is in engagement with the underside of a rail base to engage the side of the edge of the base.

9. A rail anchor comprising a wedge shoe adapted to engage the edge and underside of a rail base; a yoke member adapted to span the rail base and having a hook at one end adapted to engage one edge of the rail base and a hook at the other end adapted to embrace the shoe and to engage the upper side of the rail base between the edge and the web, the said wedge shoe having its underside bevelled adjacent the yoke entering end to exert a downward pressure on the yoke to draw the end of its shoe embracing hook into contact with the upper surface of the rail base, the underside of the said end of the yoke being bevelled at an angle slightly less than the angle of the upper side of the rail base to ensure a full contact against the rail base after the yoke has been driven to operating position on the shoe and rail.

Signed at Toronto this 20th day of September, 1924.

CHARLES Gr. ERIOSON. 

